Solar roofs have been in the media a lot in recent months. Tesla is not the only company working on them. Forward’s solar roof technology is 33% cheaper than Tesla’s and can be installed faster. Monocrystalline solar cells are used to pull this off.
Instead of using shingles, Forward’s solution has solar panels fully integrated into the roof. A venting system is built-in for passive cooling. Wiring is handled through your attic. More info is available here.